Lubricant



Patna Apr. 19, 19327 UNITED-STATES PATENT O CE cmnrns r. menus, or cnrc'aao, rumors, ABSIGNOB r0 emu rncxme comm,

- OI CHICAGO, ILLINOIS, A

conronarron or ILLINOIS tormenti- No Drawing.

My invention relates to a lubricant particularly adapted for use in engines," pumps,

.machinery, etc., for lubricating parts in situations in which the lubricant is more or less exposed to contact with gasoline or other petroleum fuel. The ordinary lubricants on the market are more or less soluble in petroleum products and are, therefore, not well adapted for use'in such situations as they quickly become diluted or are dissolved out of the bearing which they are intended to protect. The

ob ect achieved by my invention is the production ofa lubricant which will remain substantially insoluble and unattacked incontact with asoline or the like. My improved lubricant as the further advantage of not being readily soluble in water so that it is not materiallyaflected by any water, which maybe carried by the gasoline or other petroleum products or by water from an outside source, to which the lubricant is exposed.

in its preferred composition my lubricant comprises the following ingredients: blown castor oil, glycerine, carnauba wax and graphite to which may be added a small amount of fra' antmaterial such as oil of sassafras, nitro e, eucalyptus or acacia to improve the odor. f

These ingredients'ma be mixed 1n varying proportions, depending upon the ponsistency and other properties desired, but as a specific example of'a composition which I have found satisfactory for'general service may be given the following: I

I Per cent 3 by welxht Blown castor oil 53.0 -Glycerine 28.7 Oarnauba wax No. 2 2.7 Graphite, dry, fine flake 15.3 Oil of Sassafras 0.3 For satisfactory results it is necessary that the castor oil be blown more or less in order to reduce its solubility to the desired point,

though the amount of blowing may vary 4 somewhat according to the properties which it is desired that the lubricantshall have.

The blowing also increases the viscosity-of the oil. In the speg'fic example given above the castor oil,

which was of the ordinary type,

Application filed October 29, 1984 Serial No. 492,093. g

was blown by passing air therethrough while i the oil was maintained at a temperature between 75 and 150 C. until the oil had a viscosity of about 25700 Saybolt universal at 100 F In preparing the mixture the given quantity of .blown oil and g1 cerine were dumped into a mixer equippe coils and provided with an adequate stirring device of paddle type. When the mixture reached a temperature of 85 0., the above given quantity of carnauba wax was melted and poured into the mixture. The heat was then-turned ofi' and the agitation continued, After the ingredients mentioned had been thoroughly mixed the given amount of graphite was added. After the mixture had cooled tory for general purposes, the proportions given are not essential, but may vary within wide limits, depending upon the viscosity ner lubricant is desired the wax may be omit 85 ted altogether. The amount of graphite may also be varied-within widelimits.

I have found that com ositions within the following limits are suita le for my improved lubricant, asabove stated, dependin upon the particular properties desired or t e purpose to which the lubricant is to be put: 4 Blown castor oil 25-80% Glycerine r 10-65% Carnauba wax -0-25% Graphite or plumbago 040% My invention provides a lubricant which is substantially insoluble in gasoline or other V petroleum-products andmray beusedto ad- 9" with steam then ready to be 76 and other properties which it is desired that 2 moses! vantage in pacfings, rings or elsewhere in situations where the lubricant is exposed to the action of gasoline or the like with no substantial depreciation or loss by reason of 5 being dissolved out. Furthermore, the lubricant resists the action of water to which it may be exposed whether the water be con-- tained in the gasoline or other petroleum products in contact with the lubricant or is from an outside source.

I claim:

1. A lubricant for gasoline pps, etc... comprising 25 to 80% of bio castor oil and 10 to 65% glycerine.

2. A lubricant for gasoline pumps, etc. comprising blown castor oil, glycerinc and graphite.

3. A lubricant for gasoline pumps, etc, comprising blown castor oil 25 to 80 per cent,

glycerine 10 to 65 per cent and graphite 1 to 40 per cent.

4. A lubricant for gasoline pumps and the like comprising blown castor oil, glycerine and wax.

5. A lubricant for gasoline pumps, etc.,

; comprising blown castor oil 25 to 80 per cent,

glycerine 10 to 65 per cent and wax 1 to 25 I r cent.

-6. A lubricant for gasoline pumps, etc.,

comprising blown castor oil, glycerine, wax

and graphite. a

7. A lubricant for gasoline pumps, etc., comprising blown castor oil 25 to 80 per cent, glycerine '10 to 65 per cent, wax 1 to 25 per cent and graphite 1 to 40 per cent.

8. A lubricant for gasoline pumps, etc., having the following composition: blown castor oil about 53 per cent, glycerine about 28.7 per cent, carnauba wax about 2.7 per cent, graphite about 15.3 per cent.

In testimony whereof, I have subscribed my name.

' LES P. TEEPLE. 

